Question 2 (Multiple Choice Worth 5 points) (08.04 LC)
Which statement is true about a substance that has a pH value of 14?
O It is a weak base.
O It is a weak acid.
O It is a strong base.
O It is a strong acid.

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

The rate constant for the reaction below is 6.2 x 10−5 mol l−1 s −1. if the initial concentration of a is 0.0500 m, what is its concentration after 115 s?